Lepton polarization effects in "Lambda_b -> Lambda l+l-" decay in family non-universal Z' model
High Energy Physics - Phenomenology
2015-06-04 v1
Abstract
Possible manifestation of the family non-universal Z' boson effects in lepton polarization in rare, exclusive baryonic "Lambda_b -> Lambda l+l-" decay is examined. It is observed that the double lepton polarizations P_TT and P_NN are sensitive to the Z' contribution. Moreover, it is found that the zero position of the polarized forward-backward asymmetry A_FB^LL is shifted to the left compared to the standard model prediction. Therefore, determination of the zero value of A_FB^LL is quite an efficient tool for establishing new Z' boson, but also in discriminating various scenarios of the considered family non-universal Z' model.
Keywords
Cite
@article{arxiv.1202.5444,
title = {Lepton polarization effects in "Lambda_b -> Lambda l+l-" decay in family non-universal Z' model},
author = {T. M. Aliev and M. Savci},
journal= {arXiv preprint arXiv:1202.5444},
year = {2015}
}
Comments
15 pages, 3 figures, LaTeX formatted